But first, a lesson in the parts of a leaf. We looked at real maple leaves, courtesy of a tree on our playground. We were able to label a leaf worksheet and then locate those parts on our real leaves.
Then we learned about the reason leaves are green -- chlorophyll -- and why they change colors in the fall. I think I amazed the kids when I gave them a laminated card with a colored leaf pictured on it.
I told the students that we were going to remove the "chlorophyll" from our leaf cards and see if they changed colors.
They were amazed! I have to admit, it was gratifying to see them impressed by something so simple. The secret? Print in color, laminate, then color over the yellow, brown, or orange leaves with green dry-erase marker! After I 'fessed up, I let the students try it for themselves.
Our leafy afternoon ended with a real science experiment -- we are trying to extract the chlorophyll from our maple leaves. The students tore their leaves into small pieces, which they then placed inside a small cup. We covered the torn leaves with rubbing alcohol and placed them in a windowsill.
After 20 minutes, we placed a strip of coffee filter inside. If all goes as expected, tomorrow morning, some green will appear on our filter strips! Stay tuned for the results ...